PROCESSES FOR DETERMINING FORMATION SALINITY AND IDENTIFYING OIL BEARING ZONES IN FRESHWATER PAY ZONES
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United States of America
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Apr 10, 2025
app pub date -
Oct 9, 2023
filing date -
Oct 9, 2023
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Processes for determining formation salinity and/or processes for identifying oil bearing and/or water bearing zones in freshwater or relatively low salinity formations. In some embodiments, the process for determining formation water salinity can include measuring resistivity of a formation fluid sample at a first temperature (T1) and at a second temperature (T2), where T1 and T2 can be separated by a temperature difference (ΔT). The process can also include calculating a resistivity factor value based on the resistivities measured at T1 and T2. The process can also include determining a salinity of the formation fluid sample based on the resistivity factor value and the ΔT. The process can also include initiating a downhole operation using the determined salinity of the formation fluid sample.
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